US 12,473,630 B2
Inclusion of special roller to avoid creasing, wrinkling and distortion of flexible substrate in roll to roll process
Sambhu Kundu, Fremont, CA (US); PrasannaKalleshwara Buddappa Ramachandrappa, Santa Clara, CA (US); Subramanya P. Herle, Mountain View, CA (US); and Visweswaren Sivaramakrishnan, Cupertino, CA (US)
Assigned to Elevated Materials US LLC, Santa Clara, CA (US)
Filed by Elevated Materials US LLC, Santa Clara, CA (US)
Filed on Apr. 28, 2022, as Appl. No. 17/731,565.
Claims priority of provisional application 63/189,786, filed on May 18, 2021.
Prior Publication US 2022/0372614 A1, Nov. 24, 2022
Int. Cl. C23C 14/56 (2006.01)
CPC C23C 14/568 (2013.01) [C23C 14/562 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A roller assembly, comprising:
a primary roller for transporting a flexible substrate, wherein the primary roller has a first end, a second end, and a primary axis extending from the first end to the second end, wherein the flexible substrate has a coating disposed thereon and one or more edge regions that are not covered by the coating;
a first nip roller disposed at the first end of the primary roller that contacts a first edge region of the one or more edge regions and having a first weight, the first nip roller comprising a mounting hole disposed through a center of the first nip roller and a first plurality of holes encircling the mounting hole, the mounting hole coupled to a first mounting bracket, wherein a mounting angle of the first nip roller is an angle between the first mounting bracket and a secondary axis perpendicular to the primary axis, wherein the first weight is determined by one or more removably affixable first weights mounted to the first plurality of holes; and
a second nip roller disposed at the second end of the primary roller that contacts a second edge region of the one or more edge regions and having a second weight independently adjustable to the first weight, the second nip roller comprising a second mounting hole disposed through a center of the second nip roller and a second plurality of holes encircling the second mounting hole, the second mounting hole coupled to a second mounting bracket, wherein a second mounting angle of the second nip roller is an angle between the second mounting bracket and a secondary axis perpendicular to the primary axis, and wherein the second weight is determined by one or more removably affixable second weights mounted to the second plurality of holes.